Composition material.



UNITED STATES Patented December 8, 1903.

GEORGE H. MOORE, OF NORWICH, CONNECTICUT.

COMPOSITION MATERIAL.

SPECIFICATION forming part of Letters Patent No. 746,553, dated December 8, 1903- Application filed August 20, 1903. Serial No. 170,120. (No specimens-l To all whom it may concern:

Be it known that I, GEORGE HJMOORE, a citizen of the United States, residing at Norwich, in the county ofNew London and State.

of Connecticut, have invented certain new and useful Improvements in Composition Material, of which the following is a specification.

My invention relates to the production of a composition material in which granulated,

pulverized, or ground cork forms the characteristic ingredient and which material may be used for all purposes for which natural cork is used-for bottle-seals, filler-stock for boots and shoes, friction-surfaces for rolls in silk-mills, for pulley-faces, 85c.

Myinvention embodies the composition and method of preparing the same for obtaining a material of the character above described.

Broadly stated, my invention consists in incorporating with a suitable quantity of granulated or comminuted cork an adhesive substance or binder for cementing the par-' ticles of cork together into a fabric or sheet, with the addition of a substance havingthe property of overcoming or modifying the natural rigidity or stiffness of the adhesive substance or binder used when the same has forming a bond between the particles, and

thus increasing the tensile strength of the fabric or material made therefrom when in its finished condition.

In order to enable those skilled in the art to carry out my invention, I give the following detailed description: I take three ounces of granulated 0r comminuted cork and mix therewith one and one-half ounces of starch in twelve ounces of water. To the starch and water is added two ounces of a saponaceous solution formed, preferably, of threefourths of a pound of castile soap dissolved in one gallon of water. The liquid ingredicuts are added to the cork and the cork is thoroughly mixed therewith, so as to coat each particle of the cork. The mixing may be accomplished in any desired manner, as by means of any suitable or convenient mixing machinery or by hand. When the ingredients are thoroughly incorporated, the mass is rolled out into sheets of any desired thickness by means of rolls or may be molded into any desired form or pressed into sheets by any suitable means. When the sheets are formed, they are set away to dry, or the drying may be accomplished by passing the same over drying-rollers.

Where the material is desired to have a greater. tenacity and increased tensile strength, I incorporate with the cork before mixing with the liquid ingredients about one ounce of asbestos fiber to three ounces of the cork. Theasbestos fiber has the property of taking up and adhering to a considerable quantity of the cork particles, the fibers of the asbestos adhering and attaching themselves to the cork particles. A uniform mixture is prepared of the cork and asbestos by passing both through picker-rolls to evenly distribute the asbestos, so that the mixture may be made uniform. When the asbestos fibers and cork are thoroughly incorporated, the starch and water and the saponaceous solution are mixed therewith and the mass is treated as above described.

The proportions given above will make about one and one-half square feet of fabric one-eighth of an inch thick.

It will be understood that equivalents of the several ingredients may be employed without departing from the spirit and scope of the invention. For instance,instead of the asbestos fiber any mineral fiber or fiber not acted upon by acids or liquids generally may be usedsuch, for instance, as mineral wool or slag W001, 850.; also, that any desired sa'ponaceous solution may be employed instead of that made by the use of castile soap. For the adhesive material or binder any farinaceous agglutinant may be used in place of starch.

It will be understood that the proportions given need not be strictly followed in order to carry out my invention, but that they may be modified to suit the character of product desired.

The material obtained by practicingrny invention possesses a high degree of resiliency and elasticity and is eminentlysuited for the purposes described.

Having thus described my invention, the following is what Iclaim as new therein and desire to secure by Letters Patent:

1. The process of producing a material of the character described, which consists in combining a saponaceous solution with an agglutinant and mixing cork particles with the agglutinant so treated.

2. The process of producing a material of the character described, which consists in combining a saponaceous solution with a farinaceous agglutinant and mixing cork particles with the agglutinant so treated.

3. The process of producing a material of the character described, which consists in combining a saponaceous solution with starch and Water and mixing cork particles with the agglutinant so treated.

4. The process of producing a material of the character described, which consists in incorporating cork particles with a fibrous mineral material, mixing said mixture with an agglutinant having a saponaceous solution combined therewith.

5. The process of producing a material of the character described, which consists in combining a solution of soap with an agglutinant and mixing cork particles with the agglntinant so treated.

6. The process of producing a material of the character described, which consists in combining a solution of soap with a farinaceous agglutinant and mixing cork particles with the agglutinant so treated.

7. The herein-described com position of matter, comprising cork particles, a farinaceous agglutinant and a saponaceous material.

8. The herein-described composition of mat.- ter, comprising cork particles, starch, Water and a saponaceous material.

9. The herein-described composition of matter, comprising cork particles, a farinaceous agglutinant and soap.

10. The herein-described composition of matter, comprising cork particles, starch and a solution of soap.

11. The herein -described composition of matter, comprising cork particles, mineral fiber, starch, water and a saponaceous material.

12. The herein described composition of matter, comprising cork particles, mineral fiber, starch, Water and a solution of soap.

GEORGE H. MOORE.

Witnesses:

LUoIUs BROWN, RUTH A. SovELL. 

